谐波电流的污染对供电电源和电子信息设备的影响及治理方案(3)

The Influence of the Harmonic Current Pollution on the Power Supply and Electronic Equipments as Well as the Related Filtering-off Schemes (3)

本文详尽地讨论了带输入功率因数校正(PFC)功能的和不带输入功率因数校正(PFC)功能的单相整流滤波型非线性负载及IGBT脉宽调制整流型UPS的输入谐波特性。对于带输入功率因数校正(PFC)功能的和不带输入功率因数校正(PFC)功能的单相整流滤波型非线性负载而言,它们的输入电流谐波分量的THDI值和输入功率因数的PF值分别为:70%和0.8左右及10%～28%和0.95。对于IGBT脉宽调制整流型UPS而言,其THDI和DF值分别为3%和0.99。

The characteristics of the harmonic current of the rectifier type of non-linear loads with PFC （Power Factor Correction） performance as well as without PFC one for single phase equipment and the IGBT rectifier type of UPS is investigated Systematically and in detailed. The input THDI （Total Harmonic distortion Current） values and input PF （Power Factor） values are about 70% and 0. 8 as well as 10-28% and about 0. 95 for rectifier type of non-linear loads with PFC （Power Factor Correction） performance as well as without PFC one respectively. The input THDI value and input PF value are about 3% and 0. 99 respectively.